生活型

herb

形態特徵

• Herbs annual, ascending or erect, to ca. 25 cm tall. Stems square, slender, branched at base; phyllotaxis opposite.
• Leaves petiolate; petiole ca. 5 cm long; blade ovate, to 2 cm long, both surfaces hairy, base truncate, margin crenate, apex rounded. Inflorescences of dense verticillate cymes; foliaceous bracts 2, petiolate; petioles 0.5-2 cm long; bract enclosing the cymes, broadly ovate, 2-3.5 × 1.5-4.5 cm, base cuneate to attenuate, simple to lobed, apex acute; lobe 2-5 mm long.
• Flowers sessile. Calyx campanulate, 7-9 mm long, puberulent, 5-toothed; teeth narrowly triangular, equal. Corolla reddish purple, tubular, 1.5-2 cm long, bilabiate; upper lip galeate; lower lip 3-lobed; lateral lobes triangular, apex acute; central lobe fan-shaped, deeply divided. Stamens 4, didynamous, lower pair longer; anthers 2-celled, divergent, hairy at ends; stigma bifid.
• Nuts ca. 2.5 mm long, 3-keeled, scabrous.

分布

• 台灣 : The plants occurred along the Li-shin Industrial Road, at 2300-2400 m elevation.
• 世界 : distributed in Europe and the British Isles.

引證標本

Nantou Hsien, Jenai Hsiang, Wha-Gang, Mar. 12, 2006, M.-J. Jung y031204 (NCKU).

參考文獻

• Ming-Jer Jung, Gwo-Ing Liao and Chang-Sheng Kuoh, Taiwania 51(4): 308-316. 2006.